Re: [PATCH] scsi: libsas: Directly kick-off EH when ATA device fell off

From: Jason Yan
Date: Fri Dec 16 2022 - 04:29:25 EST


On 2022/12/16 11:29, Xingui Yang wrote:
If the ATA device fell off, call sas_ata_device_link_abort() directly and
mark all outstanding QCs as failed and kick-off EH Immediately. This avoids
having to wait for block layer timeouts.

Signed-off-by: Xingui Yang <yangxingui@xxxxxxxxxx>
---
drivers/scsi/libsas/sas_discover.c | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/drivers/scsi/libsas/sas_discover.c b/drivers/scsi/libsas/sas_discover.c
index d5bc1314c341..bd22741daa99 100644
--- a/drivers/scsi/libsas/sas_discover.c
+++ b/drivers/scsi/libsas/sas_discover.c
@@ -362,6 +362,11 @@ static void sas_destruct_ports(struct asd_sas_port *port)
void sas_unregister_dev(struct asd_sas_port *port, struct domain_device *dev)
{
+ if (test_bit(SAS_DEV_GONE, &dev->state) &&
+ (dev->dev_type == SAS_SATA_DEV ||
+ (dev->tproto & SAS_PROTOCOL_STP)))

dev_is_sata() would be better here.

Thanks,
Jason

+ sas_ata_device_link_abort(dev, false);
+
if (!test_bit(SAS_DEV_DESTROY, &dev->state) &&
!list_empty(&dev->disco_list_node)) {
/* this rphy never saw sas_rphy_add */